These two brackets mount the Canon Selphy photo printer under the desk (or any flat surface really). The printer will not slide out, because the left fixture has a key that Kensington lock hole on the side of your printer.
Mounting:
The right bracket is flexible and allows for a “quick release" action. Slide the printer from underneath to the left bracket, bend the right bracket outwards and place the camera in place.
This version assumes you have the printer turned on all the time which is not ideal. I am working on a fixture that allows to “press” the top power button.